2558125568 has 40 divisors (see below), whose sum is σ = 5181347688. Its totient is φ = 1261522944.

The previous prime is 2558125547. The next prime is 2558125571. The reversal of 2558125568 is 8655218552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3155 + ... + 71597.

Almost surely, 2^2558125568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2558125568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2590673844).

2558125568 is an abundant number, since it is smaller than the sum of its proper divisors (2623222120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2558125568 is an frugal number, since it uses more digits than its factorization.

2558125568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68534 (or 68518 counting only the distinct ones).

The product of its digits is 960000, while the sum is 47.

The square root of 2558125568 is about 50577.9158131294. The cubic root of 2558125568 is about 1367.6467973161.

The spelling of 2558125568 in words is "two billion, five hundred fifty-eight million, one hundred twenty-five thousand, five hundred sixty-eight".